A
BB
CCC
DDDD
EEE
EE
FFF
FFF
GGGG
GGGG
HHH
HHH
HHH
IIIII
IIIII
JJJJ
JJJ
JJJJ

flex-flow: column nowrap; ⤴

A
BB
CCC
DDDD
EEE
EE
FFF
FFF
GGGG
GGGG
HHH
HHH
HHH
IIIII
IIIII
JJJJ
JJJ
JJJJ

flex-flow: column wrap; ⤴

A
BB
CCC
DDDD
EEE
EE
FFF
FFF
GGGG
GGGG
HHH
HHH
HHH
IIIII
IIIII
JJJJ
JJJ
JJJJ

flex-flow: column wrap-reverse; ⤴